\begin{figure}[htb]
	\centering
	
	\begin{pdfpic}
\psline[linewidth=0.2cm,arrowsize=0.073cm 2.6,arrowlength=0.6,arrowinset=0.3]{<-}(13.6,1.2)(13.6,-1.2)
\psline[linewidth=0.2cm,arrowsize=0.073cm 2.0,arrowlength=0.6,arrowinset=0.3]{<-}(6.2,1.2)(6.2,-1.0)
\psframe[linewidth=0.1,framearc=0.1,dimen=outer,shadow=true,shadowangle=-45.0,fillstyle=solid](7.6,0.6)(0.4,-0.4)
\usefont{T1}{ppl}{m}{n}
\rput(4.0684032,0.12){\small Network}
\psframe[linewidth=0.1,framearc=0.5,dimen=outer,shadow=true,shadowangle=-45.0,fillstyle=solid](15.6,2.0)(0.0,1.2)
\psframe[linewidth=0.1,framearc=0.1,dimen=outer,shadow=true,shadowangle=-45.0,fillstyle=solid](7.6,-1.0)(0.4,-2.0)
\psframe[linewidth=0.1,framearc=0.1,dimen=outer,shadow=true,shadowangle=-45.0,fillstyle=solid](15.2,0.6)(8.0,-0.4)
\usefont{T1}{ppl}{m}{n}
\rput(4.04562,-1.48){\small Server Metadata}
\usefont{T1}{ppl}{m}{n}
\rput(11.7696,0.12){\small PM Manager}
\psframe[linewidth=0.1,framearc=0.1,dimen=outer,shadow=true,shadowangle=-45.0,fillstyle=solid](15.2,-1.0)(8.0,-2.0)
\usefont{T1}{ppl}{m}{n}
\rput(11.706909,-1.48){\small Server Rendering}
\psline[linewidth=0.2cm,arrowsize=0.073cm 2.0,arrowlength=0.6,arrowinset=0.3]{<-}(2.2,1.2)(2.2,0.6)
\psline[linewidth=0.2cm,arrowsize=0.073cm 2.6,arrowlength=0.6,arrowinset=0.3]{<-}(10.0,1.2)(10.0,0.6)
\usefont{T1}{ppl}{m}{n}
\rput(7.8857327,1.555){\large Server Central Controller}
	\end{pdfpic} 
	\caption{Server Central Controller}
	\label{fig:servercentralcontroller}

\end{figure}